Reaction catalyzed by ceramidase (3.5.1.23)

		+		H2O	=			+
	D-erythro-dodecanoyl-7-nitrobenz-2-oxa-1,3-diazol-4-yl-ceramide	+		H2O	=		12-[(7-nitro-2,1,3-benzoxadiazol-4-yl)amino]dodecanoic acid	+		sphingosine